public class Main {
    public static void main(String[] args) {

    }

    /**
     * 粉刷房子
     * @param costs
     * @return
     */
    public static int minCost(int[][] costs) {
        int n=costs.length;
        int[][] dp=new int[n+1][3];
        for(int i=1;i<=n;i++){
            dp[i][0]=Math.min(dp[i-1][1],dp[i-1][2])+costs[i-1][0];
            dp[i][1]=Math.min(dp[i-1][0],dp[i-1][2])+costs[i-1][1];
            dp[i][2]=Math.min(dp[i-1][1],dp[i-1][0])+costs[i-1][2];
        }
        return min(dp[n][0],dp[n][1],dp[n][2]);
    }
    public static int min(int a,int b,int c){
        int min=a;
        if(min>b){
            min=b;
        }
        if(min>c){
            min=c;
        }
        return min;
    }
}